28659820

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{41}}^1\times {\mathrm{4993}}^1$

素因数の和:5050

約数の個数: 48

約数和(自身を含む): 70475328

約数和(自身を除く): 41815508

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 41, 70, 82, 140, 164, 205, 287, 410, 574, 820, 1148, 1435, 2870, 4993, 5740, 9986, 19972, 24965, 34951, 49930, 69902, 99860, 139804, 174755, 204713, 349510, 409426, 699020, 818852, 1023565, 1432991, 2047130, 2865982, 4094260, 5731964, 7164955, 14329910, 28659820]

約数ペア:

[(1, 28659820), (2, 14329910), (4, 7164955), (5, 5731964), (7, 4094260), (10, 2865982), (14, 2047130), (20, 1432991), (28, 1023565), (35, 818852), (41, 699020), (70, 409426), (82, 349510), (140, 204713), (164, 174755), (205, 139804), (287, 99860), (410, 69902), (574, 49930), (820, 34951), (1148, 24965), (1435, 19972), (2870, 9986), (4993, 5740)]